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Revision 1104 Jun 2018 - KonstantinLekomtsev

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Novel THz radiation source based on compact linear accelerator.

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Brief description of experiment
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Drive-Witness acceleration scheme based on corrugated dielectric mm-scale capillary.

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Driver-witness electron beam acceleration in dielectric mm-scale capillaries.

 
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An experimental scheme based on a mm-scale corrugated capillary proposed as an accelerator/decelerator with an adjustable wakefield pattern, and was used to study beam dynamics at different transverse beam off-sets.
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We investigated a corrugated mm-scale capillary as a compact accelerating structure in the driver- witness acceleration scheme, and suggested a methodology to measure the acceleration of the witness bunch. The maximum measured acceleration of 170 keV/m at 20 pC driver beam charge was achieved for off-axis beam propagation. The driver bunch showed an increase in energy spread of up to 11%, depending on the capillary geometry and beam propagation, with a suppression of the longitudinal energy spread in the witness bunch of up to 15%.
 
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Detailed information on http://accelconf.web.cern.ch/AccelConf/ipac2017/papers/wepva018.pdf
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Detailed information on https://doi.org/10.1103/PhysRevAccelBeams.21.051301
 
Brief description of drive-witness experiment
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Virginia Diodes QOD detector test.


Test details

 

Papers.


Related Publications

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